OMFB HDS-12, -17, -25, -34 Series Bypass Valve 12V – For Bent Axis Piston Pumps
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The HDS Series Bypass Valve 12V is engineered for use with HDS bent axis piston pumps in constant-drive hydraulic systems — where the pump remains engaged even when hydraulic demand drops. Perfect for live drive PTO setups, this valve ensures the system remains efficient and protected during continuous operation.
Used with a live drive rear-engine PTO (REPTO), this valve is ideal for preventing heat build-up, pressure spikes, and energy waste in hydraulic systems where pump flow isn’t always required by the system.
The valve works by partially recirculating flow internally, reducing pressure and heat when the vehicle is idling or coasting, making it a vital addition to systems with no coupling or clutch to disengage the pump.
Key Features:
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Compatible with HDS-12, HDS-17, HDS-25, and HDS-34 bent axis piston pumps
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Bypass recirculation prevents energy waste and overheating during constant pump operation
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Deutsch connector with 12V or 24V solenoid options
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IP66 rated for harsh environments
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Max pressure: 400 bar
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Requires minimum flow of 5–10 L/min to tank for adequate pump cooling
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Emergency push-and-twist override included for fail-safe operation
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Includes pressure port (G 1/8) for gauge installation (optional)
Need help determining if this is the bypass for your system? Talk to our experts to confirm compatibility and find the best solution for your needs. We’re here to assist!